go: update most dependencies to the latest version

It's a lot of work for dependabot for our outdated deps, let's
help it by making one huge manual update.

Signed-off-by: Ondřej Budai <ondrej@budai.cz>

vendor/github.com/golang/glog/README

@@ -1,44 +0,0 @@
-glog
-====
-
-Leveled execution logs for Go.
-
-This is an efficient pure Go implementation of leveled logs in the
-manner of the open source C++ package
-	https://github.com/google/glog
-
-By binding methods to booleans it is possible to use the log package
-without paying the expense of evaluating the arguments to the log.
-Through the -vmodule flag, the package also provides fine-grained
-control over logging at the file level.
-
-The comment from glog.go introduces the ideas:
-
-	Package glog implements logging analogous to the Google-internal
-	C++ INFO/ERROR/V setup.  It provides functions Info, Warning,
-	Error, Fatal, plus formatting variants such as Infof. It
-	also provides V-style logging controlled by the -v and
-	-vmodule=file=2 flags.
-	
-	Basic examples:
-	
-		glog.Info("Prepare to repel boarders")
-	
-		glog.Fatalf("Initialization failed: %s", err)
-	
-	See the documentation for the V function for an explanation
-	of these examples:
-	
-		if glog.V(2) {
-			glog.Info("Starting transaction...")
-		}
-	
-		glog.V(2).Infoln("Processed", nItems, "elements")
-
-
-The repository contains an open source version of the log package
-used inside Google. The master copy of the source lives inside
-Google, not here. The code in this repo is for export only and is not itself
-under development. Feature requests will be ignored.
-
-Send bug reports to golang-nuts@googlegroups.com.

vendor/github.com/golang/glog/README.md

@@ -0,0 +1,36 @@
+# glog
+
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/golang/glog)](https://pkg.go.dev/github.com/golang/glog)
+
+Leveled execution logs for Go.
+
+This is an efficient pure Go implementation of leveled logs in the
+manner of the open source C++ package [_glog_](https://github.com/google/glog).
+
+By binding methods to booleans it is possible to use the log package without paying the expense of evaluating the arguments to the log. Through the `-vmodule` flag, the package also provides fine-grained
+control over logging at the file level.
+
+The comment from `glog.go` introduces the ideas:
+
+Package _glog_ implements logging analogous to the Google-internal C++ INFO/ERROR/V setup.  It provides the functions Info, Warning, Error, Fatal, plus formatting variants such as Infof. It also provides V-style loggingcontrolled by the `-v` and `-vmodule=file=2` flags.
+	
+Basic examples:
+
+```go
+glog.Info("Prepare to repel boarders")
+	
+glog.Fatalf("Initialization failed: %s", err)
+```
+	
+See the documentation for the V function for an explanation of these examples:
+
+```go
+if glog.V(2) {
+	glog.Info("Starting transaction...")
+}
+glog.V(2).Infoln("Processed", nItems, "elements")
+```
+
+The repository contains an open source version of the log package used inside Google. The master copy of the source lives inside Google, not here. The code in this repo is for export only and is not itself under development. Feature requests will be ignored.
+
+Send bug reports to golang-nuts@googlegroups.com.

vendor/github.com/golang/glog/glog.go

@@ -879,7 +879,7 @@ const flushInterval = 30 * time.Second
 
 // flushDaemon periodically flushes the log file buffers.
 func (l *loggingT) flushDaemon() {
-	for _ = range time.NewTicker(flushInterval).C {
+	for range time.NewTicker(flushInterval).C {
 		l.lockAndFlushAll()
 	}
 }
@@ -994,7 +994,7 @@ type Verbose bool
 //
 // Whether an individual call to V generates a log record depends on the setting of
 // the -v and --vmodule flags; both are off by default. If the level in the call to
-// V is at least the value of -v, or of -vmodule for the source file containing the
+// V is at most the value of -v, or of -vmodule for the source file containing the
 // call, the V call will log.
 func V(level Level) Verbose {
 	// This function tries hard to be cheap unless there's work to do.

vendor/github.com/golang/glog/go.mod

@@ -0,0 +1,3 @@
+module github.com/golang/glog
+
+go 1.11